# AIZO RING vs CTONE

The clearest difference is rating: CTONE at 4.0 against AIZO RING's 3.1. AIZO RING's advantage is ratings volume (44 vs 3) and iOS requirement (13.0 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CTONE holds the better App Store score, 4.0 against 3.1. That said, the two scores are not equally well evidenced: AIZO RING has 44 ratings behind it against 3, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 14, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | AIZO RING | CTONE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (44 ratings)](https://appshunter.io/ios/app/aizo-ring/id1643282888/reviews) | **[4.0 (3 ratings)](https://appshunter.io/ios/app/ctone/id6462839630/reviews)** |
| Number of ratings | **44** | 3 |
| Positive reviews | 9.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | Free |
| Size | 147 MB | 266 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen eIoT Technology Co., Ltd.](https://appshunter.io/developer/1020558089) | [Shenzhen Chuangtong Yi Purchase Technology Co.Ltd](https://appshunter.io/developer/1703510152) |

## What reviewers say

### AIZO RING

[App page](https://appshunter.io/ios/app/aizo-ring/id1643282888)

This app helps you track and analyze your exercise and sleep patterns using data from smart devices. It offers insights into your body's status and provides professional guidance to improve your physical condition and sleep quality.

**Highlights:** Exercise recording and data analysis, Sleep monitoring and analysis, Exercise data visualization, Professional sleep statistics, HealthKit integration for steps and calories, Personalized health guidance

**Features:** macOS Compatibility

**In-app purchases:** none


### CTONE

[App page](https://appshunter.io/ios/app/ctone/id6462839630)

This smart application connects wirelessly to a hair removal device, offering real-time control over settings, personalized care plans, and detailed tutorials. It helps users track progress and provides technical support for a confident hair removal experience.

**Highlights:** Wireless device control, Adjust energy intensity and flash mode, Check remaining flash times, Hair removal tutorials, Personalized care plans, Track hair removal progress, Technical support

**In-app purchases:** none


## Frequently asked questions

### Is AIZO RING free?

AIZO RING is free to download, with no in-app purchases.

### Is CTONE free?

CTONE is free to download, with no in-app purchases.

### Which has better reviews, AIZO RING or CTONE?

CTONE is rated higher. AIZO RING averages 3.1 out of 5 from 44 ratings, while CTONE averages 4.0 from 3 ratings.

### Do AIZO RING or CTONE have ads?

Neither AIZO RING nor CTONE shows ads.

### Which is updated more often, AIZO RING or CTONE?

AIZO RING ships an update monthly, and CTONE monthly. Most recently, AIZO RING was updated on October 14, 2026 and CTONE on September 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*